My own findings. Fair amount of screeching from BB during first 1000 miles. At my request dealer changed BB oil to the Redline Shockproof I supplied at 1000 mile service, following recommendations on this forum. Noise appeared to reduce but screech returned on motorway runs between 76 and 82 mph.
At 4000 mile service carried out by KH, I offered the remaining Redline but their mechanic found it a little thin so they used their regular EP90 (Millers or Morris?). Have now covered a further 500 miles in admittedly cooler temps, but cannot recall any screeching during that time.
Since getting the car recommendations seems to have swayed towards Millers EP140 which I suspect may be the better in reducing noise.
